When to Plant Wasabi in Zone 9
In USDA zone 9, plant outdoors March 1 to July 29, and expect your first harvest around July 29.
Wasabi planting calendar for USDA Zone 9
Direct sow
Mar 1
Projected first harvest
Jul 29
Wasabi is ready to harvest in about 150 days. Dates use USDA zone 9a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 9 means for wasabi
Average last spring frost
March 1
Average first fall frost
December 1
Those two dates are what set the schedule above. Zone 9 gives you roughly 275 frost-free days, and wasabi need about 150 days to mature.
Varieties to grow
1 variety of wasabi in the HomeSown library. Tap any for its full grow guide.
Common problems with wasabi
What to watch for, with identification and treatment for each
🌱 Grow wasabi with a calendar built for your exact yard
HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.
Start your free garden →